File photo Canadian Prime Minister, Stephen Harper image:15080:1::0

Next week Harper will join other world leaders for the annual Group of Eight summit. Harper said that there is a growing international conviction that all countries should sign on to reduce greenhouse gas emissions.

Harper is quoted in The Star as to saying:

"I think, if you don't see a change this year, you're certainly going to see a change on that front next year."

Bush has often been criticized for not getting aboard with other global leaders when it comes to specific emissions-reduction targets. Both McCain and Obama have vowed to take a much stronger action if they are elected to become the United States' next president.

Harper's government in Canada has set specific targets for reducing greenhouse gases after insisting that the nation could not meet the targets set forth by the Kyoto Protocol. There are many though that say Harper's plan is lax and ineffective.